This week on “Around the World,” we have an exclusive sneak preview of Christiane Amanpour’s very personal journey for her two-part ABC News special, “Back to the Beginning.”

It’s a journey back in time to explore the history and the mysteries of some of the oldest stories ever told: those of Abraham and Moses, King David and Jesus. As she visits the great sites common to the three monotheistic faiths, Judaism, Christianity and Islam, she brought along her 12-year-old son, Darius. With a Muslim grandfather, Christian grandmother and Jewish father, these three religious traditions come together in him.

As they explore the ancient stories, Christiane and her son embark on an experience that takes them from the remotest corners of Turkey through the Middle East and even to the American heartland.

You can watch the entire two-part miniseries, “Back to the Beginning,” on your local ABC station on Friday, Dec. 21 at 9 p.m. Eastern Time. It continues at the same time on Friday, Dec. 28.